Stray

On her last day of high school, Cassandra Devlin finds herself in a mysterious and unfamiliar world, filled with strange landscapes and advanced technology. As she navigates an environment of abandoned buildings, unfamiliar cultures, and a sense of being watched, she is eventually taken in by the formidable Setari and must adjust to a new society of virtual classrooms and teleporting friends. The story explores Cass's struggle to find her way back home while discovering her value in this unfamiliar universe.